Trim nulls from the end of most strings

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@2284 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Wrappers/CorDebug/ICorDebugStringValue.cs

@@ -16,7 +16,7 @@ namespace Debugger.Wrappers.CorDebug
 	{
 		public string String {
 			get {
-				return Util.GetString(GetString);
+				return Util.GetString(GetString, 64, false);
 			}
 		}
 	}

src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Wrappers/CorSym/ISymUnmanagedDocument.cs

@@ -16,7 +16,7 @@ namespace Debugger.Wrappers.CorSym
 	{
 		public string URL {
 			get {
-				return Util.GetString(GetURL, 0);
+				return Util.GetString(GetURL, 256, true);
 			}
 		}
 	}

src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Wrappers/Util.cs

@@ -18,10 +18,10 @@ namespace Debugger.Wrappers
 	{
 		public static string GetString(UnmanagedStringGetter getter)
 		{
-			return GetString(getter, 64);
+			return GetString(getter, 64, true);
 		}
 		
-		public static string GetString(UnmanagedStringGetter getter, uint defaultLenght)
+		public static string GetString(UnmanagedStringGetter getter, uint defaultLenght, bool trim)
 		{
 			string managedString;
 			IntPtr unmanagedString;
@@ -40,6 +40,11 @@ namespace Debugger.Wrappers
 			
 			// Return managed string and free unmanaged memory
 			managedString = Marshal.PtrToStringUni(unmanagedString, (int)exactLenght);
+			//Console.WriteLine("Marshaled string from COM: \"" + managedString + "\" lenght=" + managedString.Length + " arrayLenght=" + exactLenght);
+			// The API might or might not include terminating null at the end
+			if (trim) {
+				managedString = managedString.TrimEnd('\0');
+			}
 			Marshal.FreeHGlobal(unmanagedString);
 			return managedString;
 		}